4 papers
Spectral Energy and Age Distributions for 51 Globular Cluster Candidates
Jun Ma, Xu Zhou, Jiansheng Chen +5
This paper is the fourth in a series presenting spectrophotometry of 51 globular cluster candidates, that were detected by Mochejska et al. in the nearby galaxy M33 using the data…
SED, Age and Metallicity of Star Clusters in M33
Jun Ma, Xu Zhou, Xu Kong +5
In this paper we present CCD spectrophotometry of the star clusters that were detected by Chandar, Bianchi, & Ford in the nearby spiral galaxy M33, using the images obtained with t…
ASCA/ROSAT Observations of PKS 2316-423: Spectral Properties of a Low Luminosity Intermediate-type BL Lac Object
S. -J. Xue, Y. -H. Zhang
We present the analysis of archival data from ROSAT and ASCA of a serendipitous source PKS 2316-423. According to its featureless non-thermal radio/optical continuum, the object ha…
Deep Intermediate-Band Surface Photometry of NGC 5907
BATC Collaboration, Z. Y. Zheng, Z. H. Shang +3
We obtained very deep exposures of NGC 5907 with a Schmidt telescope, large-format CCD, and intermediate-band filters centered at 6660A and 8020A. These two filters, part of a 15-f…